This CD-ROM contains kindergarten, first, third, and fifth grade public-use data from the Early Childhood Longitudinal Study, Kindergarten Class of 1998-99 (ECLS-K). The CD-ROM contains an electronic code book (ECB), data files, and survey and ECB documentation for six waves of the ECLS-K. This data file and ECB will be most useful for researchers interested in changes in children's experiences and achievement across school years. Researchers interested in conducting cross-sectional or within grade analyses should use the separate base year (kindergarten), first grade, third grade, and fifth grade data files and ECBs.
There is an errata in the household roster data on this file. Please see the errata sheet here.
